stuart



(No Model.)

C. J. STUART.

STOVE PIPE.

No. 441,450. Patented Nov. 25, 1890.

awvemto'z l viimaoow the complete lengths ready for use.

UNITED STATES PATENT OFFICE.

CHARLES J. STUART, OF MONTREAL, CANADA,

STOVE-PIPE.

$PECIFIOATION forming part of Letters Patent No. 441,450, dated November25, 1890.

Application filed June 16, 1890, Serial No. 355,672. (No model.)

To all whom it may concern:

Be it known that I, CHARLES JoURDAN STUART, musician, of the city ofMontreal, in

the district of Montreal and Province of Quebec, Canada, have inventedcertain new and useful Improvements in Stove-Pipes; and I do herebydeclare that the following is a full, clear, and exact description ofthe same.

This invention relates specially to the means by which the meeting edgesof a length of stove-pipe are joined, so that a number of lengthsshaped, but still remaining open at their meeting edges, may be nestedtogether so as to occupy the least possible space in shipment, and whenrequired these meeting edges can easily be joined so as to present Ipropose to give one edge of the pipe a double fold and punch aperturesin the projecting portion of same and insert in the opposite edge rivetsto correspond with such apertures, so that by bending each end inwardtoward the center of the pipe the rivet-bearing edge can be introducedinto the seat formed by the fold, and the natural spring in the metalwill serve to bring the edges together and force the rivets through theapertures, thus locking them firmly together. For full comprehension,however, of the invention reference must be had to the annexed drawings,in which--- Figure 1 is a perspective View of a length of stove-pipeconstructed according to my invention and with the edges apart. Fig. 2is a similar view of a pipe to which my invention is applied in amodified t'orm. F ig.3 is a horizontal sect-ion of a length of pipe,showing method of bringing the edges together; and Figs 4 and 5, detailsectional views of the edges of the pipes shown in Figs. 1 and 2 whenlocked.

Similar letters of reference indicate like parts.

A is the body of the metal forming the length of pipe, 13 beinga doublefold near one edge 0 of same to form a recess B for the opposite edge Dto fit in. The edge portion 0, which extends beyond the fold B, hasapertures E punched in it, and in the body A, near the edge D, are setrivets F, with projecting heads F on the inside of the pipe andcorresponding in position to the apertures E. To look the edgestogether, it is only necessary to insert edge D into the recess B,pressing both edges inward meanwhile, as shown by dotted lines, Fig. 3,and when the edge D butts against the bend at the interior of theposition shown in Fig. 4, thus effectively look ing them together.

The shape of the apertures E may be, as shown in Figs. 1, 3, and 4,simply circular or be of button-hole form, embracing a circular openingwith slot-extension, as shown in Figs. 2 and 5.

Instead of making a double fold like B in one edge of the length tosecure the recess for the opposite edge D, the edge portion C could besimply depressed, as at G, and lips H struck up, between which lips andthe depressed portion of the opposite edge D would be securely heldagainst springing outward.

that I claim is as follows:

1. A curved stove-pipe blank, one of the meeting edges of which carriesinwardly-pro jecting studs or looking devices, and the op posite edge isprovided with a seat and aper tures to receive such studded edge, asshown and described.

2. A stove-pipe length one of the meeting edges of which carriesinwardly-projecting studs and the opposite edge has a depressioncontaining apertures and lips struck up from it, the said depression andlips forming seats for the studded edge and the said apertures servingto fit over the studs on same, for the purpose set forth.

Montreal, 9th day of June, 1890.

CHARLES J STUART.

In presence of WILL. P. MoFEAr, FRED. J. SEARs.

recess the parts are allowed to spring into the

